Multiple-tool holder



H. SMITH. MULTIPLE TOOL HOLDER.

APPLICATION FILED JUNE 26. I915.

l 9 1 95., 1 l 6 Patented Aug. 15, 1916.

Fu 7 I) 9 F UNTTED %TATE% PATENT @FFTQE.

HENRY SMITH, OF BRIDGEPORT, CONNECTICUT.

MULTIPLE-TOOL HOLDER.

Application filed June 26, 1915.

To all uihom it may concern:

Be it known that I, HENRY SMITH, a subject of the King of Great Britain, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Multiple-Tool Holders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improvements in tool holders.

The object of the present invention is to improve the construction of tool holders and to provide a simple, practical, and comparatively inexpensive tool holder of great strength and durability adapted to hold a plurality of tools and capable of easy manipulation to enable the same to be quickly brought into position for use in sequence on a piece of work.

A further object of the invention is to provide a tool holder of this character which when applied to an ordinary lathe will enable the same to possess all the advantages of a turret lathe in ease and rapidity of adjustment and facility for bringing into position for operation, a relatively large number of tools.

With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing Figure 1 is a side elevation of a multiple tool holder constructed in accordance with this invention. Fig. 2 is a longitudinal sectional view of the same, Fig. 3 is a transverse sectional view on the line 33 of Fig. 2, Fig. 4 is a rear elevation of the head.

Like numerals of reference designate corresponding parts in the several figures of the drawing.

In the accompanying drawing in which is illustrated the preferred embodiment of the invention, 1 designates a rectangular shank constructed of suitable metal and designed to be clamped in the slide rest of a lathe and Specification of Letters Patent.

Patented Aug. 15, 1916.

Serial No. 36,461.

engaging at its front end a rectangular socket 2 consisting of a recess formed in the rear face of a tool head 3 which is engaged with and disengaged from the shank by an adjustable connecting rod a. While it is preferable to construct the shank rectangular in cross section, it may be made of any other polygonal shape as will be readily understood.

The tool head 8 consists of an approximately rectangular body portion provided at its side with projecting tool receiving boxes 5 having longitudinal openings 6 in which tools 7 are secured by set screws 8 mounted in threaded perforations 9 in the sides of the boxes and adapted to secure the tools in the openings 6 and also in transverse bores or openings 10 which intersect the openings 6. The transverse bores or openings 10 which are circular in cross section are adapted to receive tools made of round steel or having round shanks and the multiple tool holder is adapted to be used in either a horizontal or vertical position and will be found particularly convenient for bushings, pulleys and the like exteriorly where a frontal tool cannot be used, boring holes, cutting interior threads and the like. The head 3 is provided at the back centrally of the recess or socket 2 with a threaded opening or bore 11 adapted to receive the reduced front threaded end 12 of the connecting rod 4. The connecting rod 4 which is circular in cross section is adapted to rotate in the shank 1 which is provided with a longitudinal opening 13 circular in cross section. The inner or rear end of the shank is also provided with an end wall 14 having a reduced opening 15 through which passes a threaded stem 16 preferably formed integral with the connecting rod or bar by reducing the rear portion of the same. The reduction of the inner or rear portion of the connecting bar or rod forms a shoulder 17 and a coiled or spiral spring 18 is interposed between the shoulder and the end wall 141 and is adapted to be compressed when the connecting rod is drawn inwardly or rearwardly to move the head 3 inwardly into engagement with the shank 1 whereby the said spring is adapted to force the head 3 outwardly out of engagement with the said shank when the connecting rod is free to move.

The inner threaded portion or stem 16 of the connecting rod is engaged by a hand nut 19 having a threaded opening 20 and hearing against the rear wall 14:. The hand wheel is adapted to be rotated to draw the head solidly on the front end of the shank and also to release the connecting rod and the head to permit the spring to force the head outwardly beyond the shank. When the head is moved outwardly beyond the shank it will rotate with the connecting rod and when the proper tool is brought into position by this rotary movement the direction of rotation of the nut is reversed to draw the head again into engagement with the shank. By this construction the head which carries the tool is easily and quickly adjusted to arrange the proper tool in position for operating on the work.

It will be seen that the tool is exceedingly simpleand inexpensive in construction, that it ispractically indestructible and that it is adapted to effect a great saving intime in setting and resetting tools and is adapted therefore, to increase the output of a shop or factory.

hat is claimed is 1. A multiple tool holder of the class described including an adjustable tool head provided with means for holding a plurality of tools and having a polygonal socket in its rear face, said tool head being also provided with a threaded opening extending inwardly from the said socket and terminating short of the front face of the tool head, a rod having front and rear reduced ends provided with screw threads, the front threaded portion of the rod engaging the threaded opening of the tool head and the shoulder formed by reducing the front end of the rod abutting against the said tool head, a hollow polygonal shank arranged on the rod and having its front end engaged with the poly onal socket and a screw mounted on the rear threaded end of the rod and engaging the rear end of the said shank.

2. A multiple tool holder of the class described including a. tool head provided with means for holding a plurality of tools and having a polygonal socket in its rear face, said tool head being also provided with a threaded opening extending from the said socket, a rod having reduced front and rear portions forming shoulders and provided with screw threads, the front threaded por tion of the rod engaging the said threaded opening of the tool head and the front shoulder fitting against the tool head at the said recess, a hollow polygonal shank arranged on the rod and having its front end detachably engaged with the polygonal socket, a nut mounted on the threaded rear portion of the rod and engaging the rear end of the shank and a coiled spring located within the hollow shank and interposed between the rear end of the same and the shoulder formed by the reduced rear portion of the rod.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY SMITH. WVitnesses:

FRANK WEBB, VYALLAOE C. SMITH.

Copies ,of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

